my newly downloaded ISO file is corrupted how is this possible ?

[zap199x]

i just downloaded ubuntu 14.04 LTS ISO directly from Ubuntu.com through google chrome.
i couldn't load it to startup disk creator so i checked its md5sum and it was wildly different from any md5sum ubuntu.com provided here http://releases.ubuntu.com/trusty/MD5SUMS
so my question is how is this possible ? i didn't do anything to the iso , i didn't even open it , i just downloaded it a second ago , didn't even restart my PC :confused:

[Bucky Ball]

Try downloading the ISO via a torrent from down the page here (http://www.ubuntu.com/download/alternative-downloads). Fairly foolproof as the md5sum is checked on the way down.

Don't know why your ISO became corrupted by do know it happens ... :-k

[howefield]

Something has gotten corrupted during download or storage on your disk. There is no built-in checksumming done on http downloads so data can be corrupted for a number of reasons.

To increase your chances of a good download, use the torrent options (http://www.ubuntu.com/download/alternative-downloads) as this will check the files as they download.

[Bucky Ball]

Snap! :D

[howefield]

:)

At least we pretty much said the same thing.

[slickymaster]

Yes, it's possible. In particular on poor quality internet connections.

The HTTP protocol does not have any provisions for ensuring data integrity. On transport layer, TCP does have error detection by using a checksum, but that does not account for data being corrupted either before transit, during storage (power failure), and after storage (corrupted hard drive).

[zap199x]

ty guys i downloaded it through torrent and got a md5sum match.